Love it or hate it, you can't deny that Marvel's Agents of S.H.I.E.L.D has made some interesting headlines throughout its first season. Many fans were probably expecting an hour long injection of superheroes every week, others were looking for characters with a bit more depth and, ultimately, most were disappointed. However, the show has been slowly building up a head of steam in recent episodes and Marvel's Jephn Loeb has announced it will now get an injection of some familiar comic book superpowers. In fact, you might not know it, but you've already met one of them...

"The Marvel Comics character Deathlok will appear on ABC's Marvel's Agents Of S.H.I.E.L.D. beginning next month, Marvel TV chief Jeph Loeb said today during the show's TCA set visit presentation. The character Mike Peterson, played by J August Richards on the series will become the cyborg. "We've been leaving breadcrumbs along the way," Loeb said. This is a major Marvel character appearing on TV, on film for the first time."

So Deathlock has been waved under our noses since the very start and it now looks like poor old Mike Peterson is about to undergo a major transformation. He'll no doubt start off his cyborg life by causing S.H.I.E.L.D a butt load of problems, before Coulson and co. free him from the shackles of Centipede and turn him into a force for good.

This news is joined by the announcement that two Asgardian characters will also be making appearances in the show. It was announced a week ago that Jaimie Alexander's Lady Sif will be making a special guest appearance in episode 15 and it has now been revealed why she is making her way to Midgaard. Loeb has announced that Asgardian villain Lorelei is hitting the show to cause, so no doubt Lady Sif is here to warn Coulson of her abilities.

"Lorelei is from Asgard," said Loeb. "She's a beautiful redhead who has the ability to sway men's minds. She has this in her own unique way of speaking."

So it certainly seems that Agents of S.H.I.E.L.D is building to a significant finale, but whether it will be enough to tempt fans back for a second season is yet to be seen.